重复频率的两级无复位非晶软磁合金磁脉冲压缩器

A TWO STAGE REPETITION-RATE AMORPHOUS ALLOY MAGNETIC PULSE COMPRESSOR WITHOUT CORE RESET

本文设计并研究一种可调脉宽的两级无复位磁脉冲压缩器(MPC)。磁开关的磁芯选用国产非晶软磁合金薄带2605S2绕制而成,层间未加绝缘薄膜。该磁脉冲压缩器将半高宽7μs的电流脉冲压缩至400ns,压缩比g=17.5,其电流峰值由64A提高到1129A,能量传输效率η=65.9%。在3.1Ω的负载上,获得3.95MW的峰值功率。脉冲重复频率达到25Hz。实验中发现,变化初始电压U_0。即可调节输出电流脉冲的宽度。

A two-stage,repetition-rate,pulse-width-adjusted magnetic pulse comp-ressor(MPC)without core reset has been designed and developed in our la bora-tory.The cores of the magnetic switches are wound with magnetic amorphoustlloy tape 2605-S2 made in China,and there is no interlamination insulation inthe cores.A 7μs(FMHW)current pulse is compressed to 400 ns(FMHW)throughthis MPC with overall pulse compression ratio G=17.5,and the peak currentis raised from 64 A to 1129 A.A peak power of 3.95 MW and an energy of 1.45J is obtained in a 3.1 ohm dummy load,and the energy transfer efficiency ofthe MPC is 65.9%.A repetition rate of 25 Hz has been obtained.And wehave found that the width of the output current pulse can be adjusted bychanging the initial charge votage U.